<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
        "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
    <title>Title</title>
    <meta charset="UTF-8"/>
    <!--<style type="text/css" rel="stylesheet">-->
        <!--@import "006属性选择器.css";-->
    <!--</style>-->
    <link rel="stylesheet" type="text/css" href="006属性选择器.css"/>
</head>
<body>
<p title="">有title</p>
<p title="W3School">title=W3School</p>
<p title="hello world">title~=hello</p>
<p lang="en-us">title|=en</p>
<p lang="en us">title|=en?</p>

</body>
</html>